Commit 21b2f443 authored Mar 22, 2016 by Stefani Seibold Committed by Linus Torvalds Mar 22, 2016

kfifo: fix sparse complaints



This patch fix complaints by the sparse tool when using kfifo_put() with
non scalar types like structures (i.e.
drivers/iio/industrialio-event.c).

Casting a pointer to the value and read this pointer instead of directly
casting the value will fix this.

The generated code is equal.

Signed-off-by: Stefani Seibold <stefani@seibold.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent ad4db3b2

include/linux/kfifo.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -401,7 +401,7 @@ __kfifo_int_must_check_helper( \
		((typeof(__tmp->type))__kfifo->data) : \
		(__tmp->buf) \
		)[__kfifo->in & __tmp->kfifo.mask] = \
		(typeof(*__tmp->type))__val; \
		*(typeof(__tmp->type))&__val; \
		smp_wmb(); \
		__kfifo->in++; \
		} \